Faced wall and connecting device therefor



l Dec. 9, 1958 .l. A. VAN vooRDEN v 2,863,314 4FACE!) WALL ANDcoNNEcTING DEVICE THEREFOR Filed Aug. 3l, 1953 lll/111111111 UnitedStates arent tice 2,863,314 Patented Dec. 9, 1958 FACED WALL ANDCONNECTING DEVICE THEREFOR Johannes Arnoldus van Voorden, Rotterdam,Netherlands Application August 31, 1953, Serial No. 377,467 6 Claims.(Cl. 72-19) The invention relates toa connecting device for a cladding,e. g., of natural stone, on walls, posts and other structural members.With buildings, often use is made of natural stone in order to embellishthe whole and the natural stone, e. g., marble slabs, have to befastened to walls, posts and other structural members, since themanufacture as a unit from natural stone is too expensive.

Naturally this manner of connections entails many difculties.

One of the greatest difficulties encountered when applying natural stoneon, e. g., a concrete or brickwork wall is the corrosion of the naturalstone by the chemical substances from the jointing mortar. When mortaris used to secure these slabs, the natural stone is often corroded bythe Water and the chemical constituents of the mortar.

This not merely causes a decomposition process of the cladding but willdetrimentally influence the color of the stone surface, which is soimportant for the beauty of the stone.

In order to overcome this objection thin slabs of natural stone areused. The thin slabs are connected to the wall by means of so-calledtufts, i. e. the slab is fastened by mortar in a few places, so thatbehind the slab an air space is formed and the slab is spaced from thewall. This method has advantages but is limited to low wall structures,since it is practically impossible to apply a justified anchorage forhigh structures, especially if the natural stone is to be placed againsta concrete skeleton.

Previous solutions to this problem were too expensive to be employablein an economic way. The purpose of the invention is to provide aconnection which enables a very lirm attachment of the slab or claddingand can be applied to any building without the cladding coming intocontact with mortar and the like and a sufliciently large air space forventilation being provided behind the cladding.

According to the invention this is attained by using a hollow anchorconnected in the structural member, and passing a tie-rod therethroughto hold to the anchor an assembling plate fastened to the cladding.

An embodiment of the invention includes an adjustable stop sleevethreaded onto the hollow anchor so that the face of the stop sleeveagainst which the assembling plate abuts can be screwed towards the wallor in the reverse direction. In this manner it is possible that thecladding slab, e. g., a large marmorated slab, which is provided withconnecting plates at various places, may be accurately po-sitioned flatagainst the stops, and adjustments may be made when the wall shows largedeviations with respect to the erection plane.

According to the invention the assembling plate is so made that it isfastened against the cladding by means of two or more screws, thecenter-lines of the screws being directed towards each other. Theassembling plate includes a threaded hole which is central of the stopsleeve. The tie-rod is threaded onto this stud. The anchor terminates ina recess provided in the outside face of the structure member. Thetie-rod is connected with the front face of the anchor by means of a nutand washer.

The invention is elucidated by an embodiment shown in the drawing.

Fig. l is a vertical cross-section through the wall, the anchor and theslab, taken along the line I-I of Fig. 2;

Fig. 2 is a side view of an assembling plate;

Fig. 3 is a side view of a supporting member.

In the wall 1 a hollow anchor is connected thereto. With concrete wallsthis is easily performed by drilling holesin the moulds at the desiredplace and passing the anchor through the holes, whilst with brick wallsthe anchor is wa1led-in when the wall is raised. At the other side ofthe wall a recess 3 is provided in which the anchor 2 terminates. Withconcrete walls or other structural members this recess can be readilyobtained by applying a block at the inner side of the mould. At the sidewhere the mould is to be applied the anchor 2 extends over a certaindistance beyond the exposed inner wall surface and this anchor extensionis provided with screw-threads. To the protruding part of the anchor ahollow cylindrical spacer member 4 is connected which is also providedwith screw-threads, so that the distance from the inner face of thisspacer member to the wall can be adjusted with respect to the exposedinner surface of the wall structure by more or less screwing on thisspacer member.

Into the abutment or spacer 4, which e.. g., can be a screw-threadedsleeve, is tted nose or hub 5 of the assembling plate 6. This assemblingplate is fastened to the facing slab 9 by means of screws 7. The screwsare directed with their points towards each other and screwed in leadwool arranged in holes in the slab 9. The spacer member 4 is freelyabutting and pivotally movable on the hub 5 on the assembling plate.

This results in a very solid connection and with a loading test it hasbeen proved that a greater adherence is obtained than when applying theWell-known wedge-bolts.

The hub 5 is provided with screw-threads and in the same a tie-rod 8 isscrewed which extends through the hollow anchor and is tightened with awasher 10 and a nut 11. The tension in this tie-rod 8 consequently doesnot act any more on the slab but exclusively on the assembly plate 6.Before applying the nut 11 and the washer 10, the end of the anchor islled up with a mastic 12 or another moist-resistant material. Over therecess 3 and the nut 11 in the usual manner the plaster 13 is applied,whilst around the adjustable spacer 4 yand the protruding part of theanchor 2 also a moist-resistant layer 14 of material, e. g., bitumen offiber impregnated with bitumen, is applied. The slab 9, e. g., can beprovided with 'two or more, e. g. six assembling plates depending on thedimensions of the slab, said assembling plates possessing accessoryanchors in the wall. lf the facing to be applied to a wall is very highfor example if the fac ing extends through several stories it ispreferred to provide the wall, e. g., at each story, with a rim or nose15 on which the assembling plate bears with an angle support 16. Theassembling plate is fastened to the facing slab 9 by means of screws 17and lead wool. ln this way each oor bears o-n a separate support and notonly the lowermost slabs are loaded. In the assembling plate, e. g.,four holes 18 are provided, whose center-lines extend according to therib of a pyramid. The holes 19 in the angle supports 16 are alsodirected towards each other. The nose 15 does not extend entirely to theslab 9, so that there is sutlicient space or drainage, whilst a goodcirculation in the space between the wall 1 and the slab 9 ismaintained.

I claim:

l. In combination with a wall structure, a connecting device adapted tosupport a facing opposite the outer surface of the wall structure, saiddevice including a plate for attachment to the facing, a hollow anchorextending through said wall structure, a tie rod connected to said plateat one end and extending through the hollow interior of said anchorbeyond the extremity of said anchor at the opposite end thereof, saidtie rod and said anchor being secured in position to the inner surfaceof the wall structure, a1 spacer member freely abutting against saidplate for movement thereon andl connected to said anchor and adjustablyaxially with respect to the opposite end of said anchor whereby thefacing is positioned a predetermined distance from the outer surface oft'he wall structure.

2. A wall structure combination as in claim l, wherein said spacermember is provided with screw threads and including cooperating screwthreads on said anchor member in engagement with the screw threads onsaid spacer member, whereby the position of said spacer member isaxially adjustable with respect to the longitudinal axis of said hollowanchor.

3. ln combination, a wall structure, a facing and a connecting deviceadapted to support said facing from said wall structure at a desireddistance whereby a space is provided between the facing and the wallstructure, which device includes an anchor member ixedly mounted at oneend to the inner surface of the wall structure, the other end of saidanchor member extending beyond the outer surface of said wall structure,said other end of said anchor member being provided with screw threads,

a hollow cylindrical spacer member, an assembling plate,

said plate having a screw threaded opening therethrough, one end of'saidspacer member being in free contact abutment'with said plate and theopposite end having screw threads `in engagement with the screw threadson said anchor member whereby the distance between said as'- semblingplate and the outer surface of the wall structure is adjustable, meansconnecting said assembling plate to said facing, and tie means extendingthrough and connected near one end to said anchor member and havingscrew threads at its opposite extremity engaging the threaded opening insaid assembling plate whereby said assembling plate is fixedly mounted.

4. A wall structure combination as in claim 3, wherein the portion ofsaid spacer member and said anchor member which is disposed in the spacebetween the facing and the outer surface of the wall structure oppositethereto has a moisture resistant layer of material applied thereover.

5. A wall structure combination as in claim 4, wherein said moistureresistant layer is composed of bitumen impregnated fibre.

6. An anchor plate device for a wall structure comprising a plateincluding means on one face for securing a member thereto, said plateincluding a hubbed portion on the opposite face, an anchoring bolthaving one end centrally adjustably connected to said hubbed portion, asleeve member extending over said bolt and around said hubbedportion,said sleeve member including two axially adjustable portions, one end ofone o-f said sleeve member portions being freely abutting and pivotallymovable on said plate about said hubbed portion, and means on theopposite end of said bolt anchoring the other of said sleeve memberportionsv to said bolt.

References Cited in the file of this patent UNITED STATESv PATENTS

